Do I need to buy black ops 2 to host?

[Cryptology]

ERROR! Failed to install app '202990' (No subscription)
CWorkThreadPool::~CWorkThreadPool: work processing queue not empty: 2 items disc arded.

[homura]

You need to install the game via piry then follow our hosting tutorial here.

[Cryptology]

Okay, I did so but now I'm getting whenever I try to start !start_zm_server I get event not found.